"I guess [I'm locked in] unless they really suddenly decided not to use me. They could, I suppose," he said. "I think I'm only doing the next movie, but I don't know if I'm doing the next, next movie."

Giamatti also admitted that he was surprised by the level of hype that Amazing Spider-Man 2 has generated during pre-production and filming.

"I was stunned at the level of interest. I was very surprised. I've never had the paparazzi guys running around on the set. I didn't expected people to be that interested," he said.

Andrew Garfield, Emma Stone and Jamie Foxx will also star in The Amazing Spider-Man 2, which opens in the UK on April 18, 2014 and May 2, 2014 in the US.

Watch Jamie Foxx discuss the film with Digital Spy below:

Gallery - Amazing Spider-Man 2:

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Andrew Garfield reprises his role as Peter Parker in The Amazing Spider-Man 2.
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